NAME

       enum nvme_id_ns_dlfeat - This field indicates information about features that affect deallocating logical
       blocks for this namespace.

SYNOPSIS

       enum nvme_id_ns_dlfeat {
           NVME_NS_DLFEAT_RB ,
           NVME_NS_DLFEAT_RB_NR ,
           NVME_NS_DLFEAT_RB_ALL_0S ,
           NVME_NS_DLFEAT_RB_ALL_FS ,
           NVME_NS_DLFEAT_WRITE_ZEROES ,
           NVME_NS_DLFEAT_CRC_GUARD

       };

Constants

       NVME_NS_DLFEAT_RB
                   Mask to get the value of the read behavior

       NVME_NS_DLFEAT_RB_NR
                   Read behvaior is not reported

       NVME_NS_DLFEAT_RB_ALL_0S
                   A deallocated logical block returns all bytes cleared to 0h.

       NVME_NS_DLFEAT_RB_ALL_FS
                   A deallocated logical block returns all bytes set to FFh.

       NVME_NS_DLFEAT_WRITE_ZEROES
                   If set, indicates that the controller supports the Deallocate bit in the Write Zeroes command
                   for this namespace.

       NVME_NS_DLFEAT_CRC_GUARD
                   If set, indicates that the Guard field for deallocated logical blocks that contain protection
                   information  is  set to the CRC for the value read from the deallocated logical block and its
                   metadata

February 2025                                enum nvme_id_ns_dlfeat                                   libnvme(2)